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外语
We must have received the letter yesterday, but it didn’t arrive.
We must have received the letter yesterday, but it didn’t arrive.
admin
2011-07-28
28
问题
We must have received the letter yesterday, but it didn’t arrive.
选项
答案
must——should
解析
must have done是肯定推测,但根据句意应当是“我们本该昨天就收到信,但至今仍没有收到”,故应当用should have done,表示“本应该”。
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0
专业英语八级
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